Furnace.



F. G. JOHNSON.

FURNACE.

APPLICATION FILED JUNE I. 1915.

19163,@14. Patented Dec. 7, 19I5.

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FURNACE.

APPLICATION FILED JUNE I ISIS. I

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Jl? EL-.IIIIHNS U N FELIX G. JOHNSON, 0F CLEAR-MONT, MISSOURI.

Specification of Letters Patent.

FURNACE.

Patented Dec. 7, 1915.

Application filed June 1, 1915. Serial No. 31,547.

To @ZZ whom t may concern:

Be it known that I, FELIX G. JOHNSON, a citizen of the United States, residing at Clearmont, in the county of Nodaway and State of Missouri, have invented certain new and useful improvementsf in Furnaces; and l do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains tofmakeand use the same.

This invention relates to furnaces and more particularly to furnaces for heating the floors of stock, poultry, and other houses.

The object of the invention is to provide a simple and efiicient furnace so constructed as to extend across the entire building and project at opposite ends beyond the ends `of the building, and having a door and smoke pipe reversibly mounted on its opposite ends so that they may be changed when desired from one end of the furnace to the other according to the direction of thewind so as to obtain the best draft.

`With this and other objects in view, the invention consists of certain novel features of construction., and the combination and arrangement of parts as will be more fully described and claimed.

In the accompanying drawings: Figure 1 represents a transverse vertical section through a building showing a floor under which this improved furnace is mounted, the furnace being shown in side elevation; Fig. 2 is a longitudinal section through the furnace and the fioor above it; Fig. 3 is an end view of the furnace; Fig. 4 is a transverse section taken on the line 4-11 of Fig. 2; Fig. 5 is a top plan view of the furnace. Fig. 6

.is a bottom plan view thereof; Fig. 7 is a horizontal section taken on the line 7-7 of Fig. 1.

1n the embodiment illustrated, a furnace is shown for heating the floors of buildings and more particularly concrete fioors, and which comprises a casing or shell l arch or inverted U-shape in cross section and which may be composed of any suitable material and of a length sufficient to extend from one side to the other of the building or house which it is designed to warm, and to project at its opposite ends beyond said building underneath the floor thereof. The opposite ends of this casing 1 are inclined downwardly and forwardly as shown at 2 and 3,

and the side walls thereof are shown connected at said ends by cross bars 4f, said bars being here shown inclined downwardly and inwardly to facilitate the insertion of the fuel in the furnace. Grates 5 and G are mounted in the furnace at opposite ends thereof and these grates may be of any suitable `or ,desired length, being preferably about three feet long more or less and are designed-for building a fire at either one end or the other of the furnace as may be desired, and for a reason to be described.`

As shown; herein a transversely disposed brace bar 7 connects the opposite side walls of the casing l at a point midway their length, but obviously this bar `would not be necessary under all conditions and may be omitted if desired. A door 8 is shown shaped to conform to the inclined or beveled endsof the furnacewhich are exactly alike. This door `is provided with an inwardly extending 1ange9 which surrounds the'edge thereof on all `sides and is adapted toengage and closely fit the beveled opening at the end of the furnace whereby it is reliably retained in position on said furnace end. rll`his door 9 is provided with a plurality of alined draft openings 10 which are provided with the usual damper 11 for controlling the draft to the furnace.

A plate 12 similar in shape to the door 8 and provided with a fiange 13 around the edges thereof adapted to fit snugly over either end of the furnace, is provided with an aperture 14. A smoke pipe or iiue 15 is secured to the outer face of this plate around said aperture, and as shown extends upwardly therethrough at an angle so that when said plate is in position on the inclined `end of the furnace, the smoke flue will be in upright position as is shown clearly in Fig. 1, and by means of which the products of combustion will be conveyed from the furnace, said pipe being of any suitable or desired height to render it safe l and to provide a proper draft for the furnace.

Securing rods 16 and 17 are here shown connected to the upper end of said smoke flue and provided at their free ends with hooks 18 which are designed to engage keepers 19 on the end of the building to hold said flue reliably in braced position and prevent its being accidentally displaced. As shown these rods 16 and 17 are provided at their inner ends with eyes 20 which are loosely engaged with a loop 21 secured to the pipe 15.

From the above description, it will be obvious that the door 8 and the plate 12 carrying the pipe 15 may be changed whenever desired and mounted on either end of the furnace according to the wishes of `the user and the direction of the .wind to provide for the production of Va more perfect draft in ythe furnace when Vthe wind isin a certain direction, it being of course understood that when the pipe is at one end of the furnace and the door at the other, that the fire is made in the grate nearest the door.

With a furnace .of this character when a lire is made therein, the heat therefrom will be imparted to the floor of the building or Y `room under which it is mounted, said floor being preferably of concrete and always protectedagainst possibility of combustion should it be` of other material. This furnace which is very simply constructed and cheap will answerv all purposes for which it isintended and may be readily set up by inexperienced workmen.`

I claim as my invention: 1. A furnace comprising a casing archshaped in cross section and having its opposite ends inclined downwardly and forwardly, a door and a plate shaped to conform .to said ends, said plate carrying a smoke flue and both of said members have kGopie'sof vrlthis patent may be vobtained for ve cents each, by addressing the Commissioner of Patents,

. IIESSBS.

ing flanges for detachably engaging either of the end walls of the furnace.

2. The combination with a building, of a furnace comprising a casing arch-shaped in cross section and having its opposite ends inclined downwardly and forwardly, a door and a plate shaped to conform to said ends, saidvplate carrying a smoke flue and both of said members having flanges for detachably engaging the end walls of the furnace, said door and plate being adapted to detachably engage'either of the end walls of the furnace and means for detachably connecting said smoke iiue to said building and for bracing it in operative position in relation thereto.

3. A furnace comprising a casing archshaped in cross section and having its opposite ends inclined,downwardly and forwardly, a door and a plate shaped to conform to said ends, said plate carrying a smoke flue and both of said members having flanges and adapted to detachably engage either end wall of the furnace, and grates mounted in said casing at opposite ends of said furnace.

In testimony whereof l have hereunto set my hand 1n presence of two subscriblng wit- FELIX G. JOHNSON. Witnesses:

FRED B. SHELEY,

WILLIAM W. THOMPSON.

Washington, D. C. 

